CUTANEOUS MYCOSES (DERMATOPHYTES)

Question 1

fungal agent of Tinea favosa/favus

Answer 1

Trichophyton schoenleinii

Question 2

yellow crusty cup-shaped flakes in head

Answer 2

scutula

Question 3

colony:

Irregularly heaped, smooth,
white to cream colony with
radiating grooves; reverse
white.

Answer 3

T. schoenleinii

Question 4

Conidia commonly are not formed. The hyphae tend to become knobby and club-shaped at the terminal ends, with the
production of many short lateral
and terminal branches

Answer 4

T. schoenleinii

Question 5

mycoses under Trichophyton mentagrophytes

Answer 5

Tinea capitis, Tinea corporis, Tinea pedis, Tinea unguium

Question 6

Colonial types may be velvety
and fluffy or granular and flat.
Color is white or tan to pink.
Reverse side is white, rose, or
red-brown.

Answer 6

Trichophyton mentagrophytes

Question 7

Numerous, small, globose,
and arranged in grape like structures

Answer 7

microconidia T. mentagrophytes

Question 8

Rare, thin walled, smooth,
and cigar-shaped

Answer 8

Microconidia T. mentagrophytes

Question 9

Urease positive; positive
hair-baiting test produces
wedge shapes in hair

Answer 9

T. mentagrophytes

Question 10

Tinea capitis, Tinea corporis, tinea unguiuum

Answer 10

Microsporum gypseum

Question 11

Flat, tan to brown or
cinnamon- brown, granular or
powdery colony. Reverse side
is rose-brown, red-brown, or
cinnamon.

Answer 11

Microsporum gypseum

Question 12

sparse, clavate, smooth-walled

Answer 12

microconidia M. gypseum

Question 13

Numerous, thick-walled,
cigar shaped multiseptate with
spiny surfaces and rounded tips

Answer 13

T. gypseum macroconidia

Question 14

M. gypseum can grow where

Answer 14

rice grain

Question 15

cigar shaped fungi

Answer 15

macroconidia T. mentagrophytes and M. gypseum

Question 16

no.1 cause of fungal scalp infection

Answer 16

Trichophyton tonsurans

Question 17

black dot ringworm

Answer 17

trichophyton tonsurans

Question 18

endothrix hair involvement

Answer 18

trichophyton tonsurans

Question 19

mycoses of trichophyton tonsurans

Answer 19

Tinea, capitis, Tinea corporis, tinea pedis, tinea unguim

Question 20

Flat, powdery, granular, and
cream, tan, yellow-rose, or
rust-colored colony. Colonies
become heaped or sunken
with folds. Reverse is yellow
to tan

Answer 20

trichophyton tonsuran

Question 21

Abundant tear-, club-, or
balloon- shaped

Answer 21

Trichophyton tonsurans microconidia

Question 22

rare smooth- walled,
cylindrical

Answer 22

T. tonsurans macroconidia

Question 23

vitamin requirement for T. tonsurans

Answer 23

thiamine

Question 24

Tinea capitis, tinea corporis, tinea
unguium

Answer 24

Trichophyton rubrum

Question 25

Fluffy or granular white to pink colonies. Reverse side is cherry red or wine red when grown on cornmeal agar.

Answer 25

Trichophyton rubrum

Question 26

Tear-shaped borne laterally from long strands of hyphae

Answer 26

T. rubrum microconidia

Question 27

birds on fence

Answer 27

T. rubrum microconidia

Question 28

pencil shaped

Answer 28

T. rubrum macroconidia

Question 29

Rarely hydrolyzes urea; requires 7 days for observable reaction; negative hair- baiting test

Answer 29

T. rubrum

Question 30

white or yellow nail discoloration, thickening of the nail

Answer 30

Onchomycosis

Question 31

mycoses of Epidermophyton floccosum

Answer 31

- Onychomycosis - Tinea corporis - Tinea pedis

Question 32

White to tan colonies, which become yellow, mustardyellow, or khaki-green with age; flat, suede-like texture with folded center. Reverse side is yellow-brown or dark orange with folds.

Answer 32

Epidermophyton floccosum

Question 33

club shaped

Answer 33

Epidermophyton floccosum macroconidia

Question 34

spatulate, beaver’s tail macroconidia with two to four cells occurring singly or in clusters of three to four

Answer 34

Epidermophyton floccosum macroconidia

Question 35

gray patch ringworm

Answer 35

microsporum audoinii

Question 36

Ectothrix hair involvement Tinea capitis, tinea corporis

Answer 36

Microsporum audoinii

Question 37

Cream, tan, buff, or light brown, flat, velvety colony. Reverse side is salmon pink or orange-brown.

Answer 37

Microsporum audoinii

Question 38

spindle shaped

Answer 38

Microsporum audoinii macroconidia

Question 39

Tinea capitis, tinea corporis

Answer 39

Microsporum audoinii

Question 40

Microsporum audoinii in woods lamp

Answer 40

apple green fluorescence

Question 41

White to buff granular or cottony surface, which develops bright yellow periphery. Reverse side is lemon yellow or yellow-orange.

Answer 41

Microsporum canis

Question 42

microsporum canis in woods lamp

Answer 42

green yellow fluoresence (

Question 43

Trichophyton agar No 1

Answer 43

basal

Question 44

Trichophyton agar No 2

Answer 44

inositol

Question 45

Trichophyton agar No 3

Answer 45

thiamine and inositol

Question 46

Trichophyton agar No 4

Answer 46

thiamine